Method for illuminating adjoining slants of an optical disk havi

Details Method for illuminating adjoining slants of an optical disk havi Method for illuminating adjoining slants of an optical disk havi

1988-03-14

1989-09-19

Psitos, Aristotelis M.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 46, 369112, G11B 709

Patent

active

048688207

ABSTRACT:
An optical disk and a method of recording, reproducing or erasing information on the disk by using laser beams. The optical disk is provided thereon with grooves each having a V-shaped groove in the radial direction. At least two laser beams are focused on two adjoining slants of each V-shaped groove so that these two slants are used concurrently for high-density recording reproducing or erasing of high-quality information.

REFERENCES:
patent: 4001493 (1977-01-01), Cone
patent: 4161752 (1979-07-01), Basilico
patent: 4216357 (1980-08-01), Iwasaki et al.
patent: 4283777 (1981-08-01), Curry et al.
patent: 4298974 (1981-11-01), Tsunoda et al.
patent: 4301527 (1981-11-01), Tsunoda et al.
patent: 4310916 (1982-01-01), Dil
patent: 4321621 (1982-03-01), Kinjo et al.
patent: 4325135 (1982-04-01), Dil et al.
patent: 4327430 (1982-04-01), Wada et al.
patent: 4349901 (1982-09-01), Howe
patent: 4365323 (1982-12-01), Heemskerk et al.
patent: 4403318 (1983-10-01), Nagashima et al.
patent: 4404599 (1983-09-01), Kinjo et al.
patent: 4451863 (1984-05-01), Yanagida et al.
patent: 4517667 (1985-05-01), Sprague
patent: 4520471 (1985-05-01), Carlin
patent: 4520472 (1985-05-01), Reno
patent: 4534021 (1985-08-01), Smith
patent: 4546463 (1985-10-01), Opheij et al.
patent: 4556967 (1985-12-01), Braat
patent: 4566088 (1986-01-01), Yoshida et al.
patent: 4569038 (1986-02-01), Nagashima et al.
Patent Abstracts of Japan, vol. 6, No. 46, 3/24/82, pp. 166, 107, JP-56-163528.
Patent Abstracts of Japan, vol. 7, No. 27, 2/17/82, pp. 41, 102, JP-56-145530.
Patent Abstracts of Japan, vol. 1, No. 119 (Oct. 11th, 1977) p. 4770 E 77, JP-52-50 702.
Patent Abstracts of Japan, vol. 1, No. 146 (Nov. 26th, 1977) p. 7442 E 77 JP-52-85 412.

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